Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Averages |
Grade: 8-a Lesson: S3-L2 |
Explanation: Let us verify the answer here with the steps. |
Description:
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
All of the members of the family are very tall. Their heights are 51 inches, 48 inches, 41 inches, and 45 inches. What is the average height of the 4 members? |
|
2 |
Hint |
Formula used |
\$"Average" = "Sum of set of numbers" / "Amount of numbers in set"\$ |
3 |
Step |
Given heights |
51 inches, 48 inches, 41 inches, and 45 inches |
4 |
Step |
Average |
\$"Sum of the heights" / "Total no. of people"\$ |
5 |
Step |
Average height |
\$(51 + 48 + 41 + 45)/4\$ |
6 |
Step |
= |
\$185/4 = 46.25\$ |
7 |
Step |
Therefore, the average height of the 4 members |
46.25 inches |
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